How to make a dual screen shaders for NDS/N3DS display both screens correctly?

[maverick-hunter]

Guys, I promise I tried searching around and messing with a lot of settings, but after hours trying I really couldn't manage to make this preset work, so I was wondering if anyone could point me in the right direction so I can learn it.

So, there are these two great shaders with bezels and reflections for Retroarch, both are just perfect for playing NDS and 3DS on a big screen:

Both seem to import just right into ShaderGlass and both have an astounding amount of parameters, and I think I tried every single one of them, but I really couldn't make them work.

The reason to use ShaderGlass instead of Retroarch if that Citra's development ceased, but its successor, Azahar, doesn't have a libretro core, and one of the developers stated they don't have any plans to make one any time soon.

These shaders are a variation on the Mega Bezel Reflection Shader Project, by Duimon and I actually think they'd fit right in within the scope of what's offered in ShaderGlass, but I really couldn't make them work properly.

Any help would be greatly appreciated!

Thanks!